[Linux-parport] Parport signals stability with SiS chipset

Nate Jenkins nate at uniwest.com
Wed Mar 17 17:29:45 GMT 2004

I was under the impression that when you try to write another byte that the
voltage would drop.  I have never used frobbing but I thought that if you
frobbed that only the specific pins that needed to change would do so, while
the ones not needing to change would maintain voltage.


"Maybe I read the wrong fictional novel?"

----- Original Message ----- 
From: <tdlt at cecm.usp.br>
To: "Linux Parallel Port Development" <linux-parport at lists.infradead.org>
Sent: Wednesday, March 17, 2004 4:00 PM
Subject: Re: [Linux-parport] Parport signals stability with SiS chipset

> On Wed, Mar 17, 2004 at 10:44:22AM -0800, Nate Jenkins wrote:
> >
> > Does "frobbing" help?  Maybe investigate "frob"  I am not sure if the
> > of this could do what you describe or not.  Or if it is chip specific...
> >
> > Nate
> >
> >
> >
> I do not believe that the lack of "frob" would do this because
> the main problem is that when you send only one byte and measure
> the pins voltage they are not what you expect.
> In what way do you suggest the lack of frob causes the problem?
> -- 
> Thiago A. M. Delatorre
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